Ōhata (大畑町 Ōhata-machi) was a town located in Shimokita District in northern Aomori Prefecture, Japan. Ōhata Village was founded in 1889. It was elevated to town status on May 1, 1934. On March 14, 2005, Ōhata, along with the neighboring town of Kawauchi, and the village of Wakinosawa (all from Shimokita District), was merged into the neighboring and expanded city of Mutsu, and thus no longer exists as an independent municipality. At the time of its merger, the town had an estimated population of 8,663 and a population density of 147.8 persons per km2. The total area was 58.59 km2.